The type of asshat who sits there and says "Oh yeah, I would have done this. Or done it that way. This person has never been in any situation at all so therefore they have no authority to comment on anything.

Hey man I heard you got shot at the other day. Yeah. Well what did you do. Well I got down and tried to get out of the way and not get fucking shot. Well I would have stood up and shot back. Shut the fuck up you armchair ranger. You don't know and you will never know what to do. All you do is sit on your ass and specualate.